Boss guide
How to beat Venom Bloom
Venom Bloom is the slowest but has the most health, so wave 20 becomes an endurance fight. Take health-based upgrades on the way there, keep moving in a wide orbit, and save a Rocket Launcher for when adds cluster around it.
- Health
- 2000
- Damage per hit
- 19
- Speed
- 40
- Coins
- 200
- XP
- 250
Appears: Wave 20 — the final boss of a 20-wave run — and every 20 waves in Endless (40, 60…).
About the boss
Venom Bloom is the slowest boss but has the most health at 2,000, hitting for 19 and rewarding 200 coins and 250 XP. As the wave 20 boss it decides whether a run ends in victory. Its patterns slowly fill the arena with hazards, but each Bloom Burst also opens its petals — and while open it takes extra damage.
Attacks and mechanics
Vine Grab
Creeping vines crawl along the floor toward the hero.
Spore Clouds
Colourful slow zones puff out around the arena.
Bloom Burst
Petals open and fire a ring of seeds; while open, it takes extra damage.
How to avoid its attacks
- Walk perpendicular to approaching vines rather than away from them.
- Do not route through Spore Clouds — the slow makes you easy prey for vines and adds.
- Find a gap in the seed ring, then punish the open bloom immediately.
Best heroes against Venom Bloom
Regeneration is perfect for a long endurance fight.
Burns keep ticking during a long fight and the gust clears adds.
Titan's health pool survives a long fight with fewer heals.
Best weapons
Save a Rocket Launcher for when adds cluster around it or the bloom opens. Laser Rifle is a steady alternative.
Recommended upgrades
Health matters more than raw damage here: Hero Vitality, and Second Wind from the Hero Lab.
Common mistakes
- Walking through Spore Clouds.
- Missing the open-bloom damage window.
- Arriving at wave 20 without health upgrades.
Strategy by difficulty
rookie
A long but safe fight — perfect for learning patterns.
hero
Take health on the way to wave 20 and play patiently.
legend
More adds and fewer heals make the endurance aspect harder.
nightmare
2,000 health becomes 3,200; Second Wind is strongly recommended.
Quick tips
- Avoid spore clouds.
- Hit hard when it opens.
- Take health upgrades before wave 20.
- It has the most health, so plan for a long fight.
- Health upgrades and Second Wind matter more than raw damage here.
- Orbit wide and burst it when its adds cluster.